Factor by any method.81x2 - 4

A. (9x - 2)2
B. (81x + 1)(x - 4) 
C. (9x + 2)(9x - 2) 
D. (9x + 2)2


Answer: C

Mathematics

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A. [5, 6] 5 ? x ? 6 B. (5, 6] 5 < x ? 6 C. [5, 6) 5 ? x < 6 D. (5, 6) 5 < x < 6

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Provide an appropriate response.If 2x2 + 3y2 = 8, use implicit differentiation to find  and simplify your answer. Note:  should not appear in your final answer.

What will be an ideal response?

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Establish the identity.cos  = -sin x

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State the conjugate of the given binomial.x + 4

A.
B. -- 4
C. -+ 4
D. - 4

Mathematics